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G.G.BucKLAND. WHEEL. APPLICATION FILED SEPT. 30.1918.

1 ,3 1 5, 1 78 l v Pafented Sept. 2, 1919.

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TMI: cnwmum PLANOGRAMLCO.. WASHINGTON. D. c.

mns iiATniri sinon.

` WHEEL.

reinste.

Specification of Letters `Patenti` resented sept. e, wie.

Appiicanoii sied september 3c, 191e. serial No. 256,302.

To all whom, it may concern:

Be it known `that I, GEORGE GARDNER i BUCKLAND, a citizen ofthe United States,

ti ii residing at San Francisco, inthe County of San Francisco and State of California, have invented new and useful Improvements in llheels, of which the following, taken in connection with the one` `sheet of accompanying drawings, is a full, clear, and exact description.

My invention relates to iinprovementsin vehicle wheels of the class which use pneumatic tires, and has for its objects the production of a simple, practical, economical, effective construction, to prevent rim cutting in case of accidental deflation, and in which the tire is easily removed and replaced, and to this end it consists, essentially, in a rim formed flat on its outer periphery through which in staggered holes are placed the nipples of the wire spokes, its side edges extending inwardly converging toward each other at an angle of approximately 450, forming a channel entirely on the inner side of the rim, tting snugly against the inner side of the tire bases: in combination with a pair of expansible, outwardly channeled interlocking tireholder rings, cut on one side, tting and holding the tire bases against the aforesaid angularly, inwardly channeled rim edges. The outer edges of the expansible channeled rings fitting the outside of the tire' bases, while their inner edges fit the anoular edges of the rim channel, interloc ing therewith, being more securely held by one or more expanding jackscrews.

In describing this invention, reference is had to the accompanying drawings, forming a part of this specification, in which like letters and figures indicate corresponding parts in all the views.

Figure 1 is a side elevation of the wheel and tire, showing the cut on one side in the expansible tireholder ring at 19, the dotted lines at -B-. indicating how one end of the cut ring tireholder springs inwardly for removal.

Fig. 2 is a transverse detail vertical sectional view, showing the outer edges of the expansible outwardly channeled cut ring tireholders adapted to a tire of the clencher type. Fig. 3 is a transverse detail vertical sectional view, showing the outer ed es of the expansible nutwardly channels 'tired holder rings adapted to a tire of the side wire type. y

Fig. 4 is a detail in cross section, showing the `ex-pansible locking jackscrew. One `or more ofthese little screws may be used to hold the expansible rings firmly to their seats. y

,In Fig. 1, 1 isthe tire, 2 isthe tube, 3 is the usual protecting fabric, 4 is the expansible cnt ring tireholder cut at 19. The

dotteddines at B, show the position of the ends of the cut ring tireholders sprung inwardly to free the tire for removal.

In Fig. 2 also Fig. 3, 4, 4a, are the expansible cut ring tireholders. 5 is the rim, made slightly oval at 18, 18a. 6, 6, are the edges of the rim turned inwardly at substantially the same angle as the tire is on the inside thereof a-t 17, 17a. 7, 7a, are the inner and locking edges of the expansible cut ring tireholders, made at an angle to lock with the turned in edges 6, 6 of the rim, the pressure of the air within the tire spreading them yto a locked position with the rim. 14, 14, are the countersunk holes for the spoke nipples. 8, 8a, are the outer turned edges of the expansible cut ring tireholders turned inwardly as in Fig. 2 to suit the bases of a clencher tire and outwardly as in Fig. 3, to suit the bases of a side wire tire.

In Fig. 4, 4, 4, are the expansible cut ring tireholders showing an expansible jack- Y screw between them. 9 is the loose swivel, turning on rivet 10, iitting against the inner edges at 7, 7a, of the tireholders. 11 is the nut or body proper of the jackscrew, threaded on the inside, into which enters the screw 12, with its outer end at 13 made to fit against the tireholders at 7 7 a.

After the tire is placed over the rim 5, and the two expansible cut ring tireholders 4, 4a, sprung as at B into place. Any desired number of these little expanding jackscrews may be placed between the tireholders, and nut 11 turned until the tireholders 4, 4, become securely seated against the rim edges 6, 6a, thereby positively locking them in place.

I do not claim a wheel broadly for I am aware that many forms of wheels are in use. I believe it is new to turn the rim edges inwardly atan angle corresponding to the inside edges of the modern tire, while at the seine time farming them, inta hook edges against' which the air pressure in the tire pulls axially outward the two expansible cut ring tireholders withA their inner edges correspondingly formed to lock within the angularly inturned edges of thel may be substituted if desired;`

Having thus described by invention, I claim The combinationffof a pneumatic tire and an inwardly channeled wheel rim between its bases, with two outwardly channeled expansible cut ring,r tireholders, their inner edges, fitting within and angularly interlocking` with the two angularly inturned edges of said inwardly channeled rim: having 'each of their outer edges turned or shaped to lit the outer edges of the tire bases, andv each of their inner edges turned or shaped to fit inside of the angular] y inturned edges ofthe inwardly channeled rim, and being held more securely thereby by expansible jackscrews placed,` axially hetween said cut ring tireholders to lorce thenr axially against said inwardly channeledrim edges.

In testimony whereofl have hereunto set my hand', Sept. 2, 19181 GEORGE 'GARDNER EUGEEANI).

Copies of this patent may'Y be obtained frf've'cents each, by addressing the Commissioneri el?v Patents,

` ll'ashington,` DL' 01" 

